/**
 * Compiles a template string into a function that can render data.
 * The template can contain:
 * - `<%= ... %>` for escaped output
 * - `<%- ... %>` for raw output
 * - `<% ... %>` for plain JavaScript code execution
 *
 * @security WARNING: This function uses `new Function()` which is similar to `eval()`.
 * Only use with trusted template sources. Do NOT use with user-generated content.
 * For user-generated templates, consider using a sandboxed library like Handlebars or EJS.
 *
 * @param {string} template - The template string to compile.
 * @returns {function} A function that takes data and returns the rendered string.
 * @throws {Error} If template contains forbidden code patterns
 */
export declare function compile(template: string): (data: Record<string, any>) => string;
/**
 * Renders a template string with the provided data.
 *
 * @param {string} template - The template string to render.
 * @param {Record<string, any>} data - The data to inject into the template.
 * @returns {string} The rendered string.
 */
export declare function render(template: string, data: Record<string, any>): string;
/**
 * Renders a template file with the provided data.
 *
 * @param {string} filePath - The path to the template file.
 * @param {Record<string, any>} data - The data to inject into the template.
 * @returns {string} The rendered string.
 * @throws {Error} If path traversal is detected
 */
export declare function renderFile(filePath: string, data: Record<string, any>): string;
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